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Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Deferred Revenue and Customer Advances by Arrangement

A rollforward of the Company’s deferred revenue and customer advances is as follows:

	Three Months Ended			Three Months Ended
	March 31, 2021			March 31, 2020
Beginning balance, January 1⁽¹⁾	$	36.7		$	24.8
Additions to deferred revenue and customer advances		25.5			17.7
Amount of deferred revenue and customer advances recognized in income		(22.3	)		(17.1	)
Ending balance, March 31⁽²⁾	$	39.9		$	25.4

⁽¹⁾

Beginning deferred revenue and customer advances as of January 1, 2021 included $18.4 of current deferred revenue, $5.5 of long-term deferred revenue and $12.8 of current customer advances.

⁽²⁾

Ending deferred revenue and customer advances as of March 31, 2021 included $17.3 of current deferred revenue, $4.5 of long-term deferred revenue and $18.1 of current customer advances.

Summary of Revenue from Contracts with Customers

The following table summarizes revenue from contracts with customers:

	Three Months Ended March 31, 2021
	Vacuum & Analysis		Light & Motion		Equipment & Solutions		Total
Net revenues:
Products	$	379.2	$	165.0	$	60.8	$	605.0
Services		56.6		17.0		15.3		88.9
Total net revenues	$	435.8	$	182.0	$	76.1	$	693.9

	Three Months Ended March 31, 2020
	Vacuum & Analysis		Light & Motion		Equipment & Solutions		Total
Net revenues:
Products	$	276.2	$	149.7	$	35.3	$	461.2
Services		43.1		15.7		15.7		74.5
Total net revenues	$	319.3	$	165.4	$	51.0	$	535.7